Improvement in machines for burnishing the sole-edges of boots and shoes



U". J. ADDY. Machine for Burnishing the Sole-Edges of Boots .and Shoes.

No. 21: Patented Aug. 26, 18:79.

'UNITED STATES f PATENT Dumon CHARLES J. ADDY, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN MACHINES FOR BURNISHING THE SOLE-EDGES 0F BOOTSANDVSHOES.

Specification forming part of Letters Patent No. 218,806, dated August26, 1879 application led May 27, 1878. Y

To all whom it may concern:

` Be it known that I, CHARLES J. ADDY, of Boston, county of Snolk andState of Massachusetts, have invented an Improved Machine for Burnishingthe Edges of Boots and Shoes, of which the following is a specification.

This invention relates to improvements in mechanism for burnishing theedges of soleleather used in boots and shoes; and consists in anorganized machine containing a toolcarrying frame provided with a shaftrotated in but one direction and a reciprocating burnishing-toolactuated by it-such frame being connected by means of a universal orball joint with a reciprocating frame provided with a shaft rotated inbut one direction and belted to the shaft which vibrates theburnishingtool, the two frames being so connected and supported that thetool-carrying frame and the two rotating shafts may be moved forward andbackward, up'and down, and laterally toward and from the shoe-supporting jack, or in any direction the resultant of two of such motions, oruniversally, whereby the entire edge of a shoe mounted upon ashoe-holding jack having only a motion of rotation, whatever may be itsshape or curvature, may be effectually polished.

In Patent No. 141,984 the burnishing-tool is so supported that it cannotbe moved laterally' vin the direction of the shoe-holding jack, or

in the direction of the length of its spindle, and consequently theentire shoe-edge, including the ball portion of the sole and the shank,cannot be effectually polished, for the tool cannot be so presented asto operate squarely upon the shank-edge. of the position of the tool tothe inclined portion of the sole near the shank is in a measurelessened, but not overcome, by moving the shoe laterally the spindle ofthe holding-jack being moved horizontally.

Prior to my invention thereof I am not aware that anyautomatically-operated burnishing-tool has been so mounted as to becapable of being moved universally in all directions to follow thesole-edge, no matter what its curvature.

Figure 1 is a side elevation of aburnishin gmachine provided with myimprovements; Fig. 2, a top view thereof; and Fig. 3, a section of thetool-carrier, tool, Svc.

This lack of adaptation The bed-plate a of the machine has a standard,I, in which is mounted a shaft, c, provided with a belt-pulley, d, andone or more sheaves, e f.

The main shaft c serves as the pivoted axis of a swinging frame, g,weighted at h. At the opposite end this frame g supports loosely areciprocating frame, i t2 t3, this being connected with gby a pin, j, onone, which enters a socket in the other, (see Fig. 1,) thereby making aswivel-joint.

The extreme end of this frame has (see Fig. l) a ball-like termination,2, which enters a socket in the tool-carrying frame 7c, so that suchframe k has a universal movement on the ball-like end 2 of frame i. Thisframe 7c has mounted in it a shaft, l, having a fixed pulley or sheave,m. A disk on shaft l is provided with a crank-pin, n, which enters aslot in the link or lever o, pivoted on a bolt, lo, at the upper end ofthe handle 1". This handle is connected with the frame k, the handleenabling the vmovin g of the frame k into all positions necessary toplace the burnishing iron or tools, of any usual shape, upon thesole-edge, no matter what may be its curvature, without moving the shoelaterally.

The frame 'i 2 Q13 has a shaft, t, which supports two or more sheaves, uuw. A belt,

driven from the main shaft, rotates the shaft t continuously in onedirection, and it, by a belt, a', over sheave fm, rotates the shaft lcontinuously, which enables me, through a shaft rotated continuously inone direction, to impart to a burnishing-tool a rapid reciprocatingmovement.

By the pin-and-socket connections between i and g the frame M2, &c., maybe vibrated horizontally by means of the axis or pivot c. Such frame maybe moved horizontally backward and forward, and by means of the axis tit may be swung up and down, or in the are of a vertical circle.

The frame 7c and burnishing-tool move with frame 11 in all thesedirections, or the resultant of any of these combined, and the frame la,in addition to such movements, has a motion on t' '52, &c., by meansofthe ball-and-'socket connection 2. i

The Weighted connecting-bar b', connected by ball-joint with the framek, assists in hold ing up such frame, balancing' it upon frame i, andpreventing` such vibration as would make the frame l: very hard to holdby the handle r.

The shoe-holding jack, on which the shoe or boot d to be burnished ismounted, has a toe-rest, e', and a spindle, f. The spindlef' is Iittedto rotate in a socket in a head, y', and this head is verticallyadjustable and securely held in its adjusted position in a fixedstainlald, I'L, so that the jack and shoe can rotate only with thespndlej".

The frame l: supported in this way may be moved laterally to place thehurnishing-tool s upon the edge of the sole ot' the hoot or shoe, andfollow it properly from the hall portion 5 along the curved portion ot'the shank. while the shoe-holding' jack rotates in a tixed path, and iteau rise and fall to operate upon the toe and side edge, and movehorizontally for ward and backward to follow the side edge.

Dispensing' with devices for moving.: the shoe-holdingjack horizontally,and so mounting` it as to have only the movements described, greatlysmplities the (mnstruetion of the machine and makes it more reliable inits action.

The rest lr holds up the frames l.' i when not in use.

The springs m', connecting the I'rame l.' and the standard 11', act tokeep the frame l; in sueh position that. its shaft l normally remainssubstantially parallel with shaft t.

In a machine wherein the shafts are rot-ated alternately in oppositedirections it is necessary to employ additional racks and gears, and themotions are hard and abrupt and less rapid than in the plan employed byme.

l claim- 1. The frame lr, having a shaft, l, rotated in one direction, alink or lever, o, handle r, pin n, and reciprocating burnisher s, incombination with au articulated frame, i i2 i3, and swinging t'rame g,swivel-join ted to said articulated trame, the shafts c t, and operatingbelts and pulleys, substantially as and for the purposes described.

2. In a bnrnishing-machine, a shoe-holdingr .iaek provided with atoe-rest, e', and a rotating' spindle, in combination with a vertieall\'adj11stable head, g', and a fixed standard, substantially asdescribed.

In testimony whereof I have signed my name to this specification inthepresence ot two subscribing witnesses.

CHARLES J. ADDY.

Witnesses z (I. W. GREGORY, N. E. WHrrNEY.

